| 氢对黄铜脱锌层引起拉应力的影响 |
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| 引用本文： | 褚武扬,高克玮,刘亚萍,乔利杰.氢对黄铜脱锌层引起拉应力的影响[J].中国有色金属学报,2002,12(4):625-628. |
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| 作者姓名： | 褚武扬 高克玮 刘亚萍 乔利杰 |
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| 作者单位： | 北京科技大学,材料物理系,北京,100083 |
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| 基金项目： | 国家自然科学基金资助项目(50071010); 国家重点基础研究发展规划资助项目(G19990650) |
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| 摘 要： | 黄铜表面在氨水中腐蚀或应力腐蚀时形成脱锌层 ,由此产生一个附加拉应力。实验结果表明 ,脱锌层拉应力σp 随黄铜试样中氢含量w(H)的升高而线性升高 ,即σp/MPa =13.2 5 .2× 10 -6w(H)。黄铜中的氢含量达到 3× 10 -6时 ,可使黄铜在氨水中的应力腐蚀敏感性升高 10 %。氢促进黄铜应力腐蚀的原因是氢含量的增大会引起脱锌层拉应力的增大。
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| 关 键 词： | 黄铜 氢 应力腐蚀 脱锌层引起应力 |
| 文章编号： | 1004-0609(2002)04-0625-04 |
| 修稿时间： | 2001年10月8日 |
Effect of hydrogen on stress induced by dezincification layer on brass |
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| CHU Wu-yang,GAO Ke-wei,LIU Ya-ping,QIAO Li-jie.Effect of hydrogen on stress induced by dezincification layer on brass[J].The Chinese Journal of Nonferrous Metals,2002,12(4):625-628. |
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| Authors: | CHU Wu-yang GAO Ke-wei LIU Ya-ping QIAO Li-jie |
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| Abstract: | Dezincification layer is formed on brass during corrosion or stress corrosion cracking (SCC) in ammonia solution, and an additive stress is induced in the same time. The stress induced by dezincification layer rises directly with increasing hydrogen content in specimen. The presence of hydrogen increases susceptibility of brass to SCC in ammonia solution, which shows that hydrogen increases the stress induced by dezincification layer. |
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| Keywords: | brass hydrogen SCC stress induced by dezincification layer |
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